diff --git a/src/views/Conversations/Online/Input/MediaUpload.jsx b/src/views/Conversations/Online/Input/MediaUpload.jsx
index 0aac579..ed844ef 100644
--- a/src/views/Conversations/Online/Input/MediaUpload.jsx
+++ b/src/views/Conversations/Online/Input/MediaUpload.jsx
@@ -30,8 +30,10 @@ const ImageUpload = ({ disabled, invokeUploadFileMessage, invokeSendUploadMessag
     }
     // 使用 FileReader 读取文件对象
     const reader = new FileReader();
-    const suffix = file.name.slice(file.name.lastIndexOf('.')+1);
-    const rename = Date.now() + '.' + suffix;
+    const lastDotIndex = file.name.lastIndexOf('.');
+    const suffix = file.name.slice(lastDotIndex+1);
+    const baseName = file.name.slice(0, lastDotIndex);
+    const rename = baseName + '-' + Date.now() + '.' + suffix;
     const dataUri = aliOSSHost + rename;
     // 读取完毕后获取结果
     reader.onload = (event) => {